package com.hk.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.hk.common.constant.ProductConstant;
import com.hk.common.to.MemberPrice;
import com.hk.common.to.SkuReductionTo;
import com.hk.common.to.SpuBoundTo;
import com.hk.common.to.es.SkuEsModel;
import com.hk.common.utils.R;
import com.hk.gulimall.product.dao.SpuInfoDescDao;
import com.hk.gulimall.product.entity.*;
import com.hk.gulimall.product.feign.CouponFeignService;
import com.hk.gulimall.product.feign.SearchFeignService;
import com.hk.gulimall.product.feign.WareFeignService;
import com.hk.gulimall.product.service.*;
import com.hk.gulimall.product.vo.*;
import com.mysql.cj.util.StringUtils;
import jdk.internal.util.xml.impl.Attrs;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hk.common.utils.PageUtils;
import com.hk.common.utils.Query;

import com.hk.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;

import javax.imageio.ImageTranscoder;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SearchFeignService searchFeignService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    ProductAttrValueService productAttrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * //TODO 高级部分再来完善
     * @param vo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1、保存spu基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        //2、保存spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(),images);

        //4、保存spu的规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map((attr) -> {
            ProductAttrValueEntity productAttrValueEntity = new ProductAttrValueEntity();
            productAttrValueEntity.setAttrId(attr.getAttrId());
            AttrEntity attrEntity = attrService.getById(attr.getAttrId());
            productAttrValueEntity.setAttrName(attrEntity.getAttrName());
            productAttrValueEntity.setAttrValue(attr.getAttrValues());
            productAttrValueEntity.setQuickShow(attr.getShowDesc());
            productAttrValueEntity.setSpuId(infoEntity.getId());

            return productAttrValueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);

        //5、保存spu的积分信息：gulimall sms
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if(r.getCode() != 0){
            log.error("远程保存spu积分信息失败");
        }

        //6、保存当前spu对应的sku信息

        List<Skus> skus = vo.getSkus();
        if(skus != null && skus.size() > 0){
            skus.forEach(item->{
                String defaultImg = "";
                for(Images img : item.getImages()){
                    if(img.getDefaultImg() == 1){
                        defaultImg = img.getImgUrl();
                    }
                }

                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                //6.1)、sku的基本信息 pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map((img) -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    return !StringUtils.isNullOrEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //6.2)、sku的图片信息 pms_sku_images
                skuImagesService.saveBatch(imagesEntities);
                //TODO 没有图片路径的无需保存

                //6.3)、sku的销售属性信息；pms_sku_sale_attr_value
                List<Attr> attrs = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attrs.stream().map((attr) -> {
                    SkuSaleAttrValueEntity saleAttrEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(attr, saleAttrEntity);
                    saleAttrEntity.setSkuId(skuId);

                    return saleAttrEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                 //6.4)、sku的优惠、满减等信息 gulimall sms -> sms_sku_xxx
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                List<MemberPrice> memberPrice = item.getMemberPrice();
                skuReductionTo.setMemberPrice(memberPrice);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(BigDecimal.ZERO) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku积分信息失败");
                    }
                }
            }) ;
        }

    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> queryWrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if (!StringUtils.isNullOrEmpty(key) && !"0".equalsIgnoreCase(key)) {
            queryWrapper.and((wrapper) -> {
                wrapper.eq("id",key).or().like("sku_name",key);
            });
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isNullOrEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            queryWrapper.eq("catalog_id",catelogId);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isNullOrEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            queryWrapper.eq("brand_id",brandId);
        }

//        String min = (String) params.get("min");
//        if (!StringUtils.isNullOrEmpty(min)) {
//            queryWrapper.ge("price",min);
//        }
//
//        String max = (String) params.get("max");
//
//        if (!StringUtils.isNullOrEmpty(max)) {
//            try {
//                BigDecimal bigDecimal = new BigDecimal(max);
//                if (bigDecimal.compareTo(BigDecimal.ZERO) == 1) {
//                    queryWrapper.le("price",max);
//                }
//            } catch (Exception e) {
//                e.printStackTrace();
//            }
//        }

        // key:
        // catelogId: 225
        // brandId: 9
        // min: 0
        // max: 0

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                queryWrapper
        );

        return new PageUtils(page);

    }

    @Override
    public void up(Long spuId) {

        //1、查出当前spuid对应的所有sku信息，品牌名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIds = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //attrs
        //TODO 4、查询当前sku的所有可以被检索的规格属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListForSup(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrId = attrService.selectSearchAttrIds(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrId);


        List<SkuEsModel.Attrs> attrs = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());

        //hasStock,hotScore
        //TODO 1 发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try{
            R r = wareFeignService.getSkusHasStock(skuIds);
            TypeReference<List<SkuHasStockVo>> type = new TypeReference<List<SkuHasStockVo>>() {
            };
            stockMap = r.getData(type).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e){
            log.error("库存服务查询异常: 原因{}",e);
        }

        //2、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts= skus.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,esModel);
            //skuPrice,skuImg
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());

            //hasStock,hotScore 设置库存信息
            //TODO 1 发送远程调用，库存系统查询是否有库存
            if(finalStockMap == null){
                esModel.setHasStock(true);
            }else{
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、热度评分：0
            esModel.setHotScore(0L);

            //brandName,branImg,catalogName
            //TODO 3、查询品牌和分类的名字
            BrandEntity brandInfo = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brandInfo.getName());
            esModel.setBrandImg(brandInfo.getLogo());

            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());

            esModel.setAttrs(attrs);

            return esModel;
        }).collect(Collectors.toList());

        //TODO 5、将数据发送给es进行保存 gulimall-search
        R r = searchFeignService.productStatusUp(upProducts);
        if(r.getCode() == 0){
            //远程调用成功
            //TODO 6、修改当前spu的状态
            SpuInfoEntity spuInfoEntity = this.getById(spuId);
            spuInfoEntity.setPublishStatus(ProductConstant.StatusEnum.SPU_UP.getCode());
            this.updateById(spuInfoEntity);
        }else{
            //远程调用失败
            //TODO 7、重复调用？ 接口幂等性；重试机制
            //Feign的调用流程
            /**
             * 1、构造请求数据，将对象转为json
             *  RequestTemplate template = buildTemplateFromArgs.create(argv);
             * 2、发送请求进行执行(执行成功会解码响应数据):
             *  executeAndDecode(template)
             * 3、执行请求会有重试机制
             *  默认是关闭状态
             */
        }
    }

}